Technical specifications: the collapsible large load carriers from the this serie consist of hygienic and insulated containers that are safe for use with food; these containers feature smooth outside and inside walls and can therefore be cleaned easily and profoundly; the throughout double-walled side walls ensure an effective isolation of the contents; the lids can be locked and sealed making unauthorized opening impossible; very hygienic because of easy cleaning; isolated against heat and cold by double-walls; space-saving when empty; cost advantages in re-transports due to volume reduction; also stackable with lids; highest possible security to prevent unauthorized opening.